Ms Allen-Wyatt, who was seen as a trailblazer for the women’s game, retired from football in September 2023 after winning 103 caps for Wales, joining an elite group of just nine Welsh footballers to play more than 100 times for their country.
She was unexpectedly left out of the Wales women’s squad in late 2022, which the BBC understands was due to a breakdown in her relationship with her teammates, due to allegations some had lent her money that she had not paid back.
Former teammates have now revealed to the BBC that some of Ms Allen-Wyatt’s actions “also impacted ourselves, our families, and friends”.
In a statement, released by the Football Association of Wales (FAW) on behalf of players, staff and the FAW, they said Ms Allen-Wyatt’s alleged actions were “extremely disappointing” and “do not represent us as a squad or our values”.
The FAW asked families to report any “potential illegal activity to police in the first instance”, but also encouraged them to get in touch for support.
They also confirmed they had spoken to police and that players were being supported.
Ms Allen-Wyatt, who also played for Liverpool and Aston Villa and now commentates for another one of her former clubs, Manchester City, launched the Tash Harding Academy in August 2023.
She regularly posted online about its success, claiming she had run 2,000 coaching sessions for children across south, mid and north Wales, Cheltenham and Bristol.