Croma — Submitted wrong documents for my MTS data card

Address:

Maharashtra

My name is Virat Prashar. Contact No. [protected]. I have complaint of "Croma (Vashi) Ground Floor,Unit no. G-23/24/25, C/O Center One Mall, Plot No 33 , Sector 30 A , Navi Mumbai - 400705 " . From there I bought "HP mini notebook & MTS data card" on 3rd March 12.

Problem is regarding with MTS Data Card (No. [protected]). I called to customer care and they told me that my documents are not completed, Please contact from ur retailor from whome u bought ur MTS data card or our nearest customer care. I was out of town that's why i didn't go for complaint. After a month when i came back to Mumbai, I look out the bill of my MTS data card and HP Notebook. But I found that characters in bill are disappeared because they are not using "Thermal paper" for bill. I got angry and went to CROMA Store (Center One Mall,Vashi) that your bill is useless as everything disapperared. Then they told me you have to take a photcopy of BILL bla bla. After some talk they give me another copy of that bill and told me to do photostate of that bill too, otherwise it will also disappear after a month.

After this I told them about my complaint,But they told me our retailer left from here so we can't do anything. They give me his contact no. but that was switched off.
Then i went to MTS Customer care center and talk about all this. They told me to submit all my documents again and give me surity that ur problem will resolve early. Next day I submitted all my documents (pan card, Lisence proof,Electricity Bill,photographs,Employee ID).
But after two days when I called to MTS Customer care for query. They told me that your documents are wrong. That MTS data card is on someone's name. I told them that I have bill of "MTS data card" it may be mistaken during cross check. But they told me,you have to submit his documents otherwise we can't do anything.
Then I got Retailor in CROMA have submitted wrong documents for MTS Data card. And CROMA told me contact to MTS customer care and MTS Customer care told me contact to CROMA retailor.
My MTS data card is still useless from 3 months and I paid Rs 600/- for that and 600/- for its recharge.
What will I do? how can I solve this problem.
Please solve my problme. I don't have any choice to do anything regarding this issue.