Mediumship is when an embodied person communicates with recognisable spirits of those who have passed on to the spirit world. It has been my experience and my clients' experience that sometimes during a tarot reading or angel channelling session, or even just coaching, a client's loved one has made contact and given a message. These have been spontaneous and out-of-the-blue messages given within the context of my usual work.
Lately, I have had some requests to act as an actual medium. This means changing the session's focus to have mediumship as the drive. Accordingly, I went and had some training from a certified medium at the Arthur Findley Centre in Stansted.  Whilst the medium whom I worked with did say that she was happy that I received contact from spirit, I am still studying mediumship and training. I do not yet feel advanced enough to offer it as a service I formally charge for.  
If You are interested in exploring and connecting with a loved one, I will add a free 15 or 20-minute  of mediumship to an hour-long commissioned session that may be intuitive coaching, tarot energy work etc.  The process is to place your booking. We will work for 30mins, either by Zoom or in person at St Martins Lane and then at the end of the session, I will endeavour to make the connection for 15 or 20 mins in my time, at no additional cost to You.