Vodafone India — bill plan changed without my knowledge

Address:

Mumbai City, Maharashtra, 400052

Dear sir

I have moved to vodafone as it was offering rs 499 plan with unlimited call and 1 gb data

I opted for basic roaming facility by paying rs 99 extra wnen i went to us from7th may till 16th june
During that period i was using the matrix /tcm cards

When i returned, to my surprise, my phone was disconnected and i was asked pay rs 1300 - rs 700+600 to activate

Within few days, again disconnected and i paid rs 1100 for may, when i was not in india.

That time i spoke to your customer care and revert me to original rs499 plan as i was back in india

Today i received a bill for rs 1886 for june (From 16th jun till 23rd june) in spite of me in rs 499 plan

Request your intervention as in 3 months i have paid over rs 2500 for no usage