PIP new claim - I am unsure, please advice.

Hello and Greetings
Hoping everyone is safe and taking care. I applied for PIP for the first time on 7th Jan this year. The PIP form was sent over to me on the 15th Feb. It had a deadline for 2nd March which was met by us. We got a couple of text messages with the acknowledgements. I received a text message last week saying that PIP team will come back to us in 6 weeks time. All of a sudden, I have checked my bank account and there is a back dated payment scheduled in from PIP at enhanced rate my Husband thinks. Should I phone PIP team and ask them for a decision and whether the payment coming in is correct? Please advice.
God bless and take care.
Best wishes
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