FAILED TO ALLOCATE PAYMENT

I took a credit card with Woolworth and upon my first repayment I used my card number as 'own reference' and 'WW card' as recipient ref. The payment did not get through to the card because of recipient ref, I consulted in store regarding this and they said they'd email payment allocation department for this which they didn't. I continued to make payments and accurately so this time around and have been emailing them on a daily basis including making calls with assistance to this because it's been months but every time I get told to wait 2 - 5 days for the payment to reflect. It's been 3 months and over 12 emails and I haven't been assisted. This is absolutely disrespectful of them to reassure me and not do as promised.