Disputes are decided by people working from a file. What is in the file decides the outcome. This is roughly the order of usefulness.
Strongest
- Bank or card statements showing each payment, as PDFs downloaded from your bank. These establish the transaction beyond argument.
- The transaction hash for each crypto transfer. With a hash, the path of the funds is verifiable by anyone; without one, we are relying on your description of it.
- Written promises from them. Messages guaranteeing returns, statements that your funds are "insured", or a demand for a fee before withdrawal. These convert your case from "an investment went badly" into documented misrepresentation, which is the distinction most disputes turn on.
- Screenshots of a platform balance you could not withdraw, especially alongside the refusal or the fee demand.
- Proof their regulatory claims were false — a register search showing no licence, or showing the licence belongs to a different firm at a different address.
Useful
- The full chat history, exported rather than screenshotted where possible.
- Emails with headers. Headers reveal the true sending server and often the spoofing. Forward as an attachment, or use your mail client's "show original".
- Archived copies of the website, including from an archive service if the site is already down.
- Your police or national fraud report reference.
- Any refusal letter you have already received — it names the grounds we then have to answer.
- Call logs showing the numbers and durations.
Weak on its own
- A written description with no documents attached to it.
- Cropped screenshots with no URL, no timestamp and no context.
- Someone else's account of a similar scam.
- Reviews on consumer review sites. They may help us understand a pattern, but a bank will not act on them, and anonymous reviews carry no evidential weight.
Two things that actively damage a claim
Edited images. If a counterparty spots one alteration, the whole bundle becomes suspect. Upload originals, even unflattering ones.
Gaps you chose not to mention. If you paid a second time after a warning, or ignored a bank's fraud alert, tell us. We can nearly always work with an awkward fact we know about in advance. A fact that surfaces later, from the other side, can end the case.
Formats and limits
PDF, PNG, JPG and common document formats are accepted. Put video or very large files somewhere you can share a link, and add the link in your claim rather than trying to upload them.