Food Safety Courses

[Pugwash]

Need to update my food safety and hygiene certificate  which I obtained many years ago. Southwark used  to do a half or one day course but I cannot find anything on their website. I shall be doing some basic food preparation/cooking for  a small organisation later this summer and need to have certificate.  Most of the courses are on line and seem to be around £18.  With so many scams/dodgy deals going on, would be grateful for recommendations.