Terrible service and no assistance.

I have logged my maternity claim on the 10th April 2024 on the 22 April the claim was cancelled I then called in to enquire why, I was then past from pillar to post being advised I need to reach out to previous employers or I need to get my company to update my termation etc. I then sent all the required documents through once again on the 29th April 2024 they advised me the matter will be escalated up until date it still hasn't bee escalated I have not received any communication from their consultants. Everytime I call they either provide me different reasoning as to why I didn't receive my payment as of yet. I am returning to work soon and have not received one payout. I am annoyed and frustrated with the poor service I've been receiving.