Wrong type system - Timber Creek Enforcer Picatinny Mini Angled Foregrip

I ordered the Picatinny type Foregrip however the M-Lock type was received. I am keeping it anyway for future use however was disappointed that i paid a lot for the wrong one to be sent. I rechecked my order and saw i ordered the one i needed. So, maybe someone overlooked what my order.... i know in my job i have to pay attention to detail, i expect the same in return.