Courses to upskill/refresh knowledge

Hi all,

I qualified as an Accountant and have set up my own practice. 

I think it is modest to say we can not be a specilaist of everything and I am looking to venture into a sector for which my knowledge of VAT I think needs to be upskilled. I know the basics of it but would like to refresh my knowledge and also upskill on it so that I can service this new sector. 

I will always look to also have a VAT specialist whom I can rely on and pay for the ad-hoc question but believe it is always good to upskill onself. 

Question is - would you guys know of companies, individuals who offer such courses? If yes, can you please share. 

I know there is BUPA, Kaplan etc but these are more for exam studies

Thanks