Awful customer care and poor accounts

I wish to share with all a terrible experience had with Mrp.

In March 2019 my fiance settled her account with Mrp in Brixton we paid the exact amount which we were told to pay by the cashier and we closed the account.

She filled in the account closure form and we were told they will fax it to head office

To our surprise 2 months later we receive a statement saying we owe 1200+ which we have no idea about.

I called head office which was absolutely useless in telling me that we need to pay the account because they made an error with the amounts, after telling her that I can't afford to pay that that's why we settled the account in the first place she simply said there's nothing that she can do.

Appalling customer service, Mrp just know that you lost customers due to bad service.