Before Christmas we took out credit card with 0% on balance transfers for 15 months and transferred our existing debts over with the idea we will be able to pay off within the 15 months interest free period. Checking it online today I realised we have been charged interest. When the card was set up, we also set up a DD to pay the monthly minimum balance which kicked in in December, but that left the minimum payment in November to pay, which DH did via debit card. However it seems it was 3 days late. We are now in position where this has breached the T&Cs of the credit card so the 0% interest for 15 months has been cancelled.
This totally negates the reason for getting the card - we were trying to tackle the debt we had sensibly by not incurring interest on separate cards, as previously we were only paying minimum balance and nothing from the capital.
I know this is DH's our fault for paying a couple of days late. It's been a really busy time, I was heavily pg at the time and we had sorted out the DD so just didn't realise until too late about this payment. TBH didn't even know it had been late until today.
Where do we stand? What can we do? I don't want to keep paying interest on this. If I phone them and argue my case any chance they will resintate the 0% offer?
Please help before my blood pressure explodes altogether.