Bajaj Finserv — Regarding my bajaj emi card

I been using Bajaj EMI card since a year, my limit was also 1.10lakh, all my loan re payment was getting debit on time and none of my loans been overdue, slowly slowly i foreclosed all my loans, finally all my loan account was successfully closed from both the ends.Today when i went to purchase a gadget from vijay sales, that time i came to know my EMI card has been blocked because of my credit score, till the time i was using this card, i had never faced issue of credit score, as all my re payments were on time, i had closed all my loans 2-3months back, everytime i saw my card was showing active in status in baja finserv application, but blood this company without informing me they blocked my card, no text no mail, such a cheater company, i even mailed them, no proper customer care to contact them, worst company and cheater apparently.