You have two options on this subscription:
a) Lock in your 2019 price by paying for a full year now. If you join this subscription now and pay in August or September 2019, you will get the pay-now price – £1500 including VAT. The subscription runs for a full year from payment date. From October the annual price will be £1700 including VAT.
b) Stay on your monthly subscription which will increase to £168 on 1st November 2019 (one month extra at the 2019 price).