Radio Taiwan International in French via TDF and BaBcoCk

TAIWAN(non)   A-16 of Radio Taiwan International in French via TDF and BaBcoCk
1800-1900 on 15375 ISS 500 kW / 190 deg to NWAf Sun via TDF acc. RTI website &
1900-2000 on 15275 ISS 500 kW / 190 deg to NWAf Sun via TDF acc. HFCC Database
1900-2000 on  7325 WOF 250 kW / 140 deg to WeEu Dly via BBC BaBcoCk, confirmed
What is the frequency for Sunday broadcast of RTI to Africa 15375 or 15275 kHz