Contract changes without prior consent or communication.

This past Monday (28 Nov) I upgraded my dotsure (pet insurance policy). The contracted amount I received and was emailed was R855.56. On 1 Dec 2022 at 11:12 i spoke with Junelle Holland as I wanted to change my debit order date. I also noticed that the debit installment amount in the debit check notification was different: R931.44. She explained that the maximum collection amount would be different to the debit installment amount but could not explain why my debit installment amount did not reflect the amount of R855.56. She said that i should contact the banks to resolve this. After the call she emailed me a new contract (without my approval or request) and changes the amount to R931.44 No explanations were given for the change in amount. Given her unwillingness to resolve the matter, I find it concerning that she changed my monthly debit order amount without any prior communication or consent. I have had this policy for at least 3 years now and this incident has left me put off by staying with Dotsure.