I was paid back a lot of tax this month and I’ve written to HMRC of why I think it’s wrong. I’ve been told by 3 separate people the tax rebate is correct but I still disagree. Our work payroll changed and basically the numbers didn’t add up and made it look like I’d paid extra tax which were never real figures to begin with. I definitely was due a couple of grand but not the amount I was given. I’ve tried 3 times. Would you keep the money aside or spend it?