Sales Tax Adjustment

I have a two fold question that I hope someone can walk me through the steps to fix this?  First I want to say I have been a Simply Acctg/Sage gal for many years, so I am struggling a bit getting used to QB'S. I have just recently started using QB Desktop Pro 2018.  Firstly, I thought I had setup GST/ITC accounts correctly, apparently not.  Our first annual GST remittance was due in March this year and knowing better should have checked the Sales Tax Report first against the B/S, but I pulled the numbers from the B/S from Oct -Dec (when GST started) and submitted the GST remittance online banking/CRA. After looking at the Sales Tax Report where I still need to file the return in QB's I saw the first mistake. I had in error used the GST account code instead of the ITC account code on a purchase from the pull down account choices when booking the purchase, so the GST on the B/S was understated by $47.62 and the ITC understated by $47.62. The correct amount remitted was still correct. However, on the Sales Tax Report line 103 is showing the correct GST amount that should have been remitted and I don't show any ITC's on the line 106 which would be one of my problems not setting up the code properly for Receiver General. There is also the $47.62 at the bottom of the report showing an unassigned sales tax amount of $47.62. As of January 2019 I have created a new ITC account for Receiver General , so going forward the GST/ITC amounts are balanced to B/S and the Sales Tax Report.  I need to know how to do an adjustment in the Sales Tax Report to match the remittance I made to CRA which would be the unassigned $47.62 showing in the Sales Tax Report and then filing the return. I did reach out to support twice and unfortunately the background noise was too loud and it was frustrating I couldn't hear everything. So, any help to walk me through these adjustments would be greatly appreciated.

Thx