Discovery Bank | Dischem Co-Payment issues for months now

On the 18th of May, I went to Dischem to get meds like I do every month. The payments were processed via co-payment but Dischem did not receive the payment on their side even though it went off my credit card.

In fact, one payment went off twice. After trying to resolve this over and over for 2 months, it is still not sorted.

Today I was billed again from Dischem without even being in store or authorising this. I am having no luck dealing with any of the people at Discovery Bank!! I now have 4 transactions on my account that are essentially ***** from Discovery Health and no one wants to do a thing to fix it.