To buy whizlab product what you can do is write a mail to whizlab(firstname.lastname@example.org) or call them(+91-11-51589171)
i bought a software long time back so here is the details.
You can deposit a cheque/DD/online transfer/cash in favor of
'Whizlabs Software Pvt Ltd' in the nearest branch ICICI bank A/C #
After making the payment, please send us the transaction details. Once
purchase gets confirmed we will provide you with a download link and
number to activate the product.
In case you want it shipped in a CD, the same can also be availed with
additional amount .
hope this will help
good luck for your exam