The 'Other' section is relevant to all purchase types (Mortgage/Help to Buy/Cash). Click 'Start' next to this fund to begin. Here, we will ask you to provide additional details, in writing, about the other source of funds. We will then ask for proof to be uploaded, for example, the receipt of a sale of an asset, bank statements or if you're very lucky, a lottery ticket win! Once done, click 'Save' to complete this step.