Sage Accounting Help

we got a short payment for an invoice in bank. when we check with the bank, we get to know that the difference is due to the bank charges. now we are not able to settle the full invoice value against the receipt. how to adjust the balance against bank charges when settling the invoice.

Secondly we using sage 50 Canadian edition through remote access, we cant find any valuable resources here to tackle the daytoday transactions challenges. how can we get support from sage team, either call or video conference. is there any other platform we can refer to for further queries/videos etc. or how to access the interactive classroom sessions.

we found that the video materials shared by sage are very basics and not usefull for complex transactions.