Dotsure not as great as some say

next to impossible to get a response from Dotsure, i have been trying to cancel my policy with them since mid July, i have sent several emails and get no response. they have taken off their payment for August, now, as Murphy would have it, i have had to take my dog to the vet for stitches. so i either want my premium paid back or i want the claim paid. i tried loading the app on my phone, but it says i don't have an " account", so i am assuming the policy has been cancelled?????? but again, as payments are made upfront for the month, i please either want the claim paid back to me, or i want the month's premium paid back.