I have no issues with me going first in applying your refills. I will be providing proof after each successful top up, after you have verified that the top up was successfully applied, you can then send me the payment. (For those who don't know) The margins for distributors from prepaid carriers depends on the carrier. Some carriers pay slightly more than others. On average the margins are between 6% - 15%. I have no problems with making only 5% from each refill as long as you provide me with a lot of volume. Anyone interested in this service PM me for more details. Thanks!