Sooo.... i figured it out by my own (thanks community(such sarcasm)). If you have a steam trade hold then the bot will automatically decline. Welp i guess i have to wait a whole weak with this stupid steam guard or something. But ey at least i figured it out.

The StoreBot doesn't work. When i give him a trade request (and i have my 100 credits for 1 scrap) i put the scrap from his inventory and then he declines and my points were not taken. The exact same thing happens when i sell scrap (i can't).