Bharat Sanchar Nigam [BSNL] — recharge on mob no [protected]

Sir, i recharge my mob no. [protected] on 30 aug 2019 of rs 20 in
Which i have to get rs 14.95 talk time, but instead of that i get 265 free sms for 15 days. Sir i call customer care 3 to 4 times but i do not get satisfactory answer from them.
They are asking that this is 3rd party problem from which you make request of recharge or make payment.