How can an investor top up?
From August 2025 we no longer provide the option to top up your investment online.
You can submit investment and top up instructions via the following methods:
Fax
You can fax an instruction to us on:
From the UK - 0330 123 3751
From abroad - 0044 1268 457 728
Post
You can post an instruction to the address below:
Thesis Unit Trust Management
PO Box 12248
Chelmsford
CM99 2EG