[Resolved]  The Apollo Clinic Salt Lake City Center — Three Bottles Blood collected with advance money, not processed unless full payment is made

I had called up their Collection Centre on 22nd Mar. 09 for Blood Collection. I have given an advance of Rs. 100/- for the same for their billing purposes and got the info noted in their slip that I shall be paying by Axis Bank Corporate Credit Card to avail 15% discount at the time of making the final payment. I got a call from them that I have to come in the evening to process the full payment within 6:30 to 7:30 P.M. When I reached within that time in the evening, nobody was there to process the bill and I returned back. I called them up Monday Morning to let them know the situation and I have been told that they would call me back after 7-8 hours. They never called back. When I called them back today morning (27/3/09), they told me that I have to again provide 3 bottles of blood, as the previous one never got processed due to the fact that full billing was not done and that it would be processed only when I would pay for the full amount. Nowhere it is written that only when I would pay full amount, then only they would process the blood for testing.

Are they justified asking me for another three Bottles of Blood?
As per them I should have given the full amount at the time of Blood Collection. Why should I leave my 15% discount by giving them full amount on the spt for a billing of around 850 Rupees?