Decided to try the minifig builder and my order has been duplicated multiple times...

I ordered 8 minifigs for me and my friends and somehow everything I ordered has been duplicated a random number of times. I have 58 heads, multiple body parts and so, SO many accessories! I have no idea how this has happened. I've only just picked up lego as a hobby and from what I gathered the company is really good so surprised at such an error, even if it is more in my favour. The invoice only says 1 of each and I've only paid for the 8 I ordered submitted by /u/silentarcher00 ...