Cash taken in Store but no receipt offered

I visited the Vodacom Shop at Lifestyle Tzaneen yesterday.<br> <br> I needed them to download Whatsapp on my Samsung (contract) phone.<br> I was told that it will cost me R80.00.<br> I had no problem with the paying of the R80.00 fee, but I do have a problem with the fact that the R80.00 went straight to the pocket of the guy who assisted me, and I did not receive any receipt for the R80.00 paid.<br> Right in front of my eyes he put the R100 in his pocket and gave me R20 from his pocket.<br> NO receipt was offered.<br> How can a company as large as Vodacom run their business that way. <br> How do you keep track of money paid or is that fee actually meant to be for the staff dealing with the service rendered pocket?<br> I do realize that no service can be offered for love and charity in these days, but at least one's payment should be acknowledged by way of a receipt offered?<br>