I’ve been trying to obtain a document that HMRC have requested showing interest for a complete tax year (interest certificate). I was told it would take 2 weeks. The first time it was the wrong year, the second time it didn’t arrive and now 5 weeks on I’m requesting it again and I’m told another 2 weeks. This is insane. I need this to get a pension rebate and shortly I’m going to be leaving the country. Absolutely useless. Santander and HSBC have these documents for download, I got them both in 15mins. I’m closing my account as soon as this is finalised.

Edit: the online complaint service takes so long that it times out before you get to speak to anyone. I tried twice on my phone while in the gym. Nationwide’s service seems designed to frustrate.