By cantcarryon Tue 11-May-10 18:14:30
"in cases of overpayment of wages they would be required to allow you to pay it back in instalments"
That's not the case unfortunately, if it's an overpayment it can be deducted in one go straightaway, there's no requirement to allow instalments. In cases where it was overpayment of a large amount that might reasonably not have been noticed by the employee, most employers would allow instalments or similar, but in any case, the OPs partner made it clear straightaway he knew it was not correct. Having said that, of course overpayments deducted straightaway would mean from future salary payments owed to the employee, not accessing someone's personal bank account which sounds outrageous.
OP I'm not saying the employer has behaved reasonably, clearly he should have had some kind of paperwork outlining what his final pay should have been, however it seems possible to me that the reason they have become so aggressive is because your partner has paid back nothing at all in almost a year.
I'd be inclined to work out as closely as you can how much you think he owes. I'm not sure why he'd be owed gardening leave money, gardening leave is just where the employer asks the employee not to come into work at a time when they are still employed, so as long as he was paid up to and including his final day of employment that shouldn't be an issue.
Either way, whether he was on gardening leave or not, his final payment would usually have been for however many working days he was employed in June last year, plus however many days holiday he had accrued and not taken. A day's pay is usually 1/260th of annual salary so if you divide his salary by 260 then multiply by working days employed in June plus holiday days owed, that should give you a gross total before tax.
Obviously it won't be exact at all, as there is tax involved etc but from that you ought to be able to pin down a rough amount your partner thinks he owes, and really, I think you should pay that in a cheque and include a letter saying that this is the amount you believe you owe and if they believe you owe any more they will need to specify in detail.
I'm sure there are legal ins and outs with debt recovery and dispute of amounts, which I know nothing about, so I agree you should talk it through with the CAB first, and they may give you very different advice. It just occurred to me though that if you'd paid what you thought you owed therefore prompting them to either drop it altogether or specify the difference, it may have been resolved earlier without debt collection agencies being involved.