Bank Guarantee Impossible to be paid back in full

Every time I send a document through there was some kind of issue, and it seems like the task is impossible if you want to claim a payment through a deposit Guarantee. Even on the telephone, the person who supposed to be helpful were not of any help, simply reading me the terms and conditions and NO ONE can understand what that means. <br> <br> After I sent the whole claim to my director for help, after 2 weeks, only then, the documents were acceptable, however nothing on them changed??<br>