Warranty Claim Not Being Delivered.

I have made a warranty claim on the battery packs part SMX120BP. Schneider Electric has accepted the warranty claim but is unable to give me the ETA. I have been asking for the ETA for more than 6 weeks now. Loadshedding is really bad currently. I have invested a lot of money in the APC UPS and 4 battery packs. Now I have to go through Loadshedding with no knowledge when I will receive my 4 battery packs.