Frustrating Debit order

There is a company called 6.99 Tpcdat.com 457896*0706 taking moneys from my account starting January 2020. I called FNB several times and nothing has been done. I show on my statement that there is an amount taken from my account (from R105.73 & R111.00). Its different amounts every month and I am unable to stop it and block it because it doesn't appear on all my debit order list. Please help.