You remember correctly. Wright were behind in their deliveries so it affected First's cascade plan. Think the ex Norwich B7Ls were delayed, being required for replacement of non PSVAR compliant B10BLEs. Hence, 69588 went to Weston and 69589 BG14OPF, 69590 BG14OOH, 69591 BG14OOU, 69592 BG14OOV, and 69593 BD14KXR arrived at Bath for December 2015
They all had air-con having worked for Malta Public Transport as BUS371, BUS365, BUS353, BUS355, BUS356, BUS366 and all headed to Somerset Passenger Solutions afterwards.