Can anyone Point me in the right direction for information or step-by-step instructions on how to replace the indexing post any help would be greatly appreciated

Hi I have just got my first Air Aarms and I’m having the same problem the magazine stopped rotating after only 10 shots don’t think I will have a problem with the retailer replacing it has it is only two days but my concern is if I get a replacement rifle is this going to keep happening because afte...