American Express India — mmt hotel offers

As i booking hotel from mmt using code mmtamxplt, i m not getting that promise discount, when your executive told me you will get 70 % discount n no minimum amount, now there your offer is not fullfil the requirements... I m not getting that discount your executive told me.. This is extremely disappointed... I requested kindly change the offer to previous discount... Plz don't disappoint me.. Thank you