Wanted: French grammar tuition (advanced)

[DebbieH]

Does anyone know, or could anyone recommend a good French tutor who would be able to give advanced (post A-level) one-to-one help? I am a working professional who is considering studying for a DALF qualification next year (a French tutor would know what this is); I am a confident reader/speaker in French, but I'm looking for support re: grammar/tenses (especially written).

The tutor would not necessarily have to live in the East Dulwich area (where I am based): I am happy to travel. I work freelance, so I can also be fairly flexible about timings (ie: would not necessarily have to be evenings or weekends).

Any leads or recommendations would be very gratefully received. Merci mille fois!