VERY BAD SERVICE-CAPITEC CONNECT DEPARTMENT

I have had a very bad expierience with Capitec connect ,they offered me a simcard and i accept although they said data was cheaper but it wasnt.On the 16th I phoned telling them my phone was lost and i have already blacklisted one simcard ,Capitec said to me they cant block on their side as phone already blacklisted .Phone is insured and Insurance told me they are able to see that my phone had 2 simcards but if Capitec cant blacklist my phone they need to put it in writing until today Capitec is refusing to send me an email that they cant assist i have been dealing with 2 thandekas the one is a supervisor and other one is a consultant i even went to the branch and asked insurance people to explain what they want but they not helping me and because of them i still cannot claim my insurance most of all I regret the day i took the card