Vodafone Prepaid — recharge issue

Address:

Uttar Pradesh

My name is pankaj sharma i recharged my vodafone no.is [protected] with 118rs on 22/11/2011 i received the call from vodafone side that you will get full talk time after recharge of 118 rs then i recharged my no. With 118 rs the recharge amount gone in tariff, this is second time happened,my 236 Rs has gone now .when i called customer care they were not giving satisfactory answer i am very disappoint from vodafone and its customer care service.now i am thinking that i should switch to another service with same number by number portability.