master/visa card service provider — master/visa card service provider fake calls offering discount cards [protected]

I got a call from [protected] before few days. The caller introduced himself and said that he worked for visa/master card service provider. He offered me a card with various benefits like 5-30% discount on every transaction, a watch, free health check up and 3 days 2 night tour twice in a year. But to avail these offers i had to pay around rs8750 and the the offer looked quite lucrative. He told me that rs8750 get linked to my credit card and amount of rs8750 would reflect in my credit card statement. I didn't go for the offer because i thought that it could be a scam so today continues this company call me and force me to send courier with address and credit card detail call number is [protected]. And yes it is because i found people complaining about it on the internet. I just want to share the above number if it could help in anyway.