http://pat.cantarusdev.com/How-To-Invest
PAT subsidise a trading facility with Interactive Investor (“ii”) to enable you to hold shares in the Company through an Interactive Investor ISA or Trading Account, where PAT cover the annual fee, online dealing costs and dividend re-investment costs, if you hold only PAT in your ii account. For the avoidance of doubt, this offer does not apply to the SIPP offering or Interactive Investor Company Account.