DLA to pip

Hi hubby just had dla to pip decision, enhanced mobility same as DLA, standard daily living he had never put in for care part of DLA as we were too afraid in case he lost the mobility part so left it for yrs until the pip change.

My question is, filled pip form Feb, decision is August, there's no backdating of daily living, should there be? I understand if it was a new claim it would go from date of sending the claim form.

We are happy with the decision he just missed out on enhanced care by 1 point we're not going to rock boat.

Thank you Gordon for clarifying that, we wernt sure and the letter didn't say.
We followed the guides on here they're really helpful.