Konica Minolta Sandton

We used the services of Konica Minolta Sandton for a few years and we eventually ended the contract in about 2023 and made our final payment to them on 29/09/23. Some time later, on 3/01/24 we mistakenly paid them R1115.94 which was supposed to go to another branch of Konica Minolta in Secunda. We have been struggling since then to get them to refund us this money. What kind of company is it that does not refund money that was mistakenly paid to them? They now claim to have donated the overpayment to the SPCA 6 months ago – but are unable or unwilling to provide any proof thereof – so that appears to be a bald-faced lie on the face of it - unbelievable. The director invites us to take them to the small claims court rather than repaying what was never their money.