I do not have a FP6, this is what I experience for the FP5, and reading through the threads of FP6 I had the feeling it is more or less the same on the FP6. Just checked the last two releases, for example:
QREL.15.122.0, July SPL, Telekom DE, 2 days delay
Software Update: FP6.QREL.15.122.0 - #29 by david92 (mentioning Telekom and not receiving it the first day a few entries before)
Software Update: FP6.QREL.15.122.0 - #18 by RMW
Software Update: FP6.QREL.15.122.0 - #32 by RMW
Software Update: FP6.QREL.15.122.0 - #36 by Watchdog (Congstar being on Telekom, I use it as well)
QREL.15.105.0, June SPL, Telekom DE, 4 days delay
Software Update: Fairphone (Gen. 6) - FP6.QREL.15.105.0 - #44 by RMW Telekom DE
Edit: @lowbob123 4 reports of users with Telekom DE network having the update with SPL July. Maybe something fishy on your device. The customer service from Telekom DE is very friendly and usually quick to reply. Maybe you give it a go.