Dissappointed with Takealot.com

I noticed from my May & June’ 20 credit card statement that 2 suspicious deductions were taken from Takealot as follows; 21-May-20 Takealot Online Fores**** R1,349.00 03-Jun-20 Takealot Online Fores**** R1,610.00 Total R2,959.00 After contacting Takealot directly to investigate what was purchased from them on these 2 occasions, I have been advised "that these are suspicious payments taken from my credit card". How would they know this? I cannot recall purchasing anything from Takealot on these dates using my credit card. Therefore I asked Takeaway to check their record to see what was bought from their side, but they rep**** “We are very sorry to hear about the ***** that occurred on your account and urge you to report it to your bank urgently" without even telling me what I asked them

They did not send proof of any purchase or refund these 2 amounts and I cannot get an answer and I cannot have these sales reversed