Peterley Manor Farm review for Zapiet ‑ Pickup + Delivery

I've used this app since March, and despite initially offering really useful functionality, we have experienced blips along the way. Most were usually resolved fairly quickly by the support team. However, the past two weeks have been a complete disaster. Our entire store was down for four days last week, after Zapiet decided to try to complete an update which stopped everything from working. We are given no prior warning of disruption, and after slaving away to get our Christmas store functioning, were left with little more than a feeble apology and no time frame of when the issues would be resolved. Things seemed to have sorted themselves out over the weekend (save a few niggles) until this morning, I find once more the app does not seem to working again, and is completely preventing customers from checking out. Support team are slow to respond, I tried calling their "24 hour support" and received no answer. I'm absolutely furious. This app is genuinely costing us thousands of pounds worth of sales, and I fear we're rapidly loosing customers who can't be bothered with the constant 'technical hitches' when they try to place an order. I'm now forced into looking into competitors' apps and reconfiguring our entire store- at the worst time of year when we really cannot afford the time nor the disruption to our store. Disappointed, frustrated and so so angry.