Sony India — Delay of LED Installation

Dear Sir/Madam, I purchased one sony bravia LED 22' from Mampi Electronics in Hooghly(West Bengal) district at Tribeni Bazar of Rs. 13490 at per news paper advertisement. I think that price included VAT @ 12.36%. After 2-3 days when i change the system for picture problem they are delay for exchange and they have again claim vat of 24" LED. I am confused against one item purchased how many times VAT you can claim. Another problem how many days i shall wait for installation. if it is not installed with in 48 hours then i will complain your higher authority. so, i think u will do the co-operate and need full. Thanking You, Yours Faithfully Mr. Basanta Mukherjee Mobile: [protected]