Bitcoin beginner. Blockchain.com customer service is so bad

(Please bear in mind I don't know much about bitcoin)

About 10 years ago, I bought about £50 of bitcoin. I left it for a long time, monitoring it every year approximately. It turned into about £1,000. Cool. I needed money recently and wanted get my money in my bank account (I might re-invest back in bitcoin in the near future though)

I think I originally bought the bitcoin through a website called bitbargain.co.uk, but my bitcoin was now in a website called blockchain.com. No idea how it got there, didn't really care

I logged on to blockchain.com etc and it said I needed to make a bank transfer first, to link the bank account, only then could I make a withdrawal

So I went on my bank app and followed the instructions off blockchain.com to make a deposit to link the bank account. "ERROR - ACCOUNT NOT RECOGNISED" my bank app said.

Huh, strange. I tried it on the bank website on my computer. Exact same error.

Huh, strange. I contacted the blockchain.com support team. "Try clearing your browser cache" "Try contacting your bank" "Try using a different browser" "Have you double checked the bank details?" "Send me a screenshot of the error". "You must be typing the details wrong". This went on for HOURS. Then DAYS. I was back and forth between my bank and blockchain.com support team. Back and forth, back and forth. Hours on the phone. "Try again during business hours" "Double check the account number and sort code" "You need to contact the payee, not our problem" "You need to contact your bank, not our problem"

After days of trying to get my money out, I was pulling my hair out. I was begging the blockchain.com support team "PLEASE there must be some other way I can get my money out?" But they just gave the same answer. "Sorry, nothing we can do to help you." I was also begging my bank "PLEASE there must be some way to just force through this payment, it's only £5.. etc". Again "Sorry, nothing we can do to help you"

Eventually, on Thursday, I was ranting to a guy in work, who knows a little bit about crypto etc. He mentioned some UK banks block payments to cryptocurrency websites. I quickly went on google and searched it. Yep. My bank was one of them. I was so happy to finally find the answer to the problem, but at the same time, extremely pissed off that neither my bank nor blockchain.com actually informed me that this was the real reason for the payment giving an error.

I called the bank a few minutes later and - after another hour of waiting listening to hold music - I eventually got through. They just said the usual excuses - "double check the details you have typed" "try again during business hours" etc. But then, eventually, after a long time, they admitted that the payment had been blocked.

I eventually got my money out by registering on coinbase (which I've heard good things about), transferring the bitcoin to my account there, then selling it for GBP, and withdrawing it to my UK bank. It was extremely fast and smooth.

I don't know who to be more pissed off at. My bank for not telling me straight away that the account was blocked (instead of fobbing me off for days and days with incorrect excuses). Or blockchain.com for doing the same thing too, instead of just explaining that it's likely they were on the bank block list, they fobbed me off for days and days with incorrect excuses.

Very very very frustrating. Everyone in my work knows how unhappy I've been the last few days because I just assumed I was never going to see this money ever again. For over 5 days and despite many many frustrating hours spent on the phone, neither my bank would tell me that they blocked the payment, nor would blockchain.com tell me that the payment failed because they're blocked by my bank. Instead I got crappy excuses, constantly, and being blamed from both sides like it was my fault.

tl;dr: blockchain.com customer service is terrible