Don't hold your breath
I have had the same problems each time I have stayed at an Accor hotel.
Because I usually book and pre pay online the room rate is not shown on the invoice at check out. So when I try and claim my points I send them the reservation number which according to their customer non-service phone persons is just not good enough.
To be honest after the cost and time sending my latest claim for 3 hotels in Thailand being further queried and requests for my credit card statements (which are a private matter) I am at the stage of giving up on A Club.
I have even had an e-mail from their ‘customer non–service’ asking ME, the customer, to contact THEIR hotels and ask for re-sends of THEIR invoices. What a joke.
Surely A Club can manage to credit points when members stay at their properties without asking their members to waste time and money chasing points?