Rechargeguru.com — Right Service not provided

Address: Gujarat

I used rechargeguru.com to recharge my BSNL SIM Card on Sunday 27 February, 2011. I ordered this -
65 x BSNL On Demand or Custom Made Online Recharge. (RG-Excel-Online-Custom-Recharge). Recharge Type - Normal
I paid a total amount of Rs.74 via PayPal. I did not got recharge in 24hrs. After 24hr i got an SMS from BSNL that
Your account has been credited with Rs.65. Recharge Voucher successfully from OGUJ on 28/02/2001 at 01:36PM.
Ref :[protected]

I checked my Balance but it was showing Rs.13.56 that means not balance was put up. I called BSNL Customer Care. They told me you have recharged for Rs.65 and have activated one Scheme. Then i called Rechargeguru office. This is what we talked

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Me - I recharged my BSNL SIM with Rs.80 but i have been credited only Rs.65 and that too Special Recharge

RG - Ok. Give me your Oder No.

Me - I have them Order No. and asked them to please check it.

RG - Sir, You account has been rechared with Rs.65

Me - I wanted Normal Recharge but you gave me Special Recharge. I also wrote in Special Note about it that i want Normal Recharge.

RG - Sir, It's not our mistake. There is some problem in BSNL System. We can't do anything. We daily do many recharge but this happened only in you.

Me - Please do something about it. Refund my money or recharge my mobile with same amount i paid you.

RG - Why? Why should i recharge you mobile. You got Rs. 65 recharge. Now, pay if you want recharge.
Me - Huh? It was your mistake, you did Special Recharge when i told you Normal. Please refund me my money back

RG - If you want recharge, go to our site and order from there. We can't do anything now. It's not in our hand.

Me - Huh? I paid you for what i wanted. You have to give me what i ordered. No matter you give me Rs 500 recharge. I want that service for which i paid you.

RG - I am holding this phone, you talk what ever you want. I am not going to reply.
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According to rechargeguru. When sale is completed, their is nothing between buyer and seller. Is this acceptable behavior of any Seller?