I haven’t seen this advertised , but when I went to cancel my auto renew - I was offered a discount not to cancel.
Worth trying if your renewal is due and you want a discount .
It don’t think it will work if you have sits booked after your renewal date .
I do that every year. Support said it is only valid once but I get a discount the majority of the time and still keep my ‘basic’ membership I have had since I joined.
Thanks for the info. Seems like THS is employing the same sleezy tactics as insurance/banks etc where you are rewarded for not being a loyal member. Disappointing but not unexpected due to the v poor member ‘experience’ I’ve received with THS. Actually you prob won’t see this post due to THS vetting of posts that don’t suit their agenda. 
Help! I am unable to access my membership although it should be listed until June this year
The help section is pointless and no one is returning my emails
Hello @ClaireAdventurer
Just to let you know that I have passed this across to the Membership Services Team so please do keep a look out for an email from them.