what you can do though, is do a couple surveys for more credits and grab both the backstraps and the handgaurd and I will combine shipping for $6 for the both since I can put them in the same box
Never ever purchase credits. They aren't worth what you pay for them. Search for things that have cash equivalent value such as gift cards, silver, etc and you will get a good feel for what credits are actually worth. Just don't buy credits.
well you should be alright then. It took me a while to get a feel of what credits are worth. Some people on here try to low ball you when it is already low. Think about it, how much can credits really be worth if you can get 500 credits just filling out a survey.