An Update for anyone that's interested.
She contacted Myanmar Airways that put her in touch with a Burmese Travel Guru, he got in touch with Qatar for her and had an airline representative meet her off her Myanmar flight then escort her to the correct gate for her Qatar airways flight.
On arriving at Heathrow she had four and a half hours in Immigration where we couldn't find anything out, I begged Qatar departures desk supervisor to see if she could find anything out and she told us she had boarded at Doha, a security guard eventually showed me where I could phone immigration on a phone that never got answered.
Eventually she came wandering out and all is good.
I'll give Qatar, already my favourite airline 10/10 for going above and beyond the call of duty and UK immigration 1/10, they didn't even bother to phone my mate to verify anything and she couldn't phone out.