Beetel — My land line receiver is not working properly

Address:

kakdwip,south 24 parganas

Only 20 days left, My new land line receiver is not working properly. This item bought through amazon. Today I calling amazon customer service & they are saying "already 7 days gone, so our team are not help with u", , And already many times I am calling beetel customer care no. but saying "not reachable"
Kindy check my problem and solved this..