Regret can not make a confirmed opinion.
You may show all the documentation to a lawyer specializing in consumer cases, cyber law and proceed under expert advice.
Your lawyer shall help you to understand the merits, and that you shall qualify to be a consumer or complainant, and that is there a clear consumer dispute, deficiency and that if the complaint would be tenable or not?
You can yourself also go thru :
The Consumer Protection Act, 1986
Valuable advice of learned experts/members is sought.