Xero & QuickBooks Smart Sync

Absolutely terrible service. We had requested a trial and the app wouldn't even load. I spoke to support at their end and was told it was a Shopify issue. Then Shopify reviewed and it was found to be on this apps end. By this stage the 14 day trial had ended and I was yet to even be able to access the app. I was charged $990 USD for an app I can't even use. I wrote to support again asking for them to please refund and asked if we could start a trial next month as there was no point now as my finance person who would be using the app is on leave. I was then told by support that because we didn't have "time" to use the app during the trial we would have been charged. So now I'm $990 down for an app I don't even know if it works because I can't even use it. I have requested a full refund and am awaiting to hear back from them. Not feeling super confident after the past two weeks of communication. Be very aware.