Did you remember to include the url link of this thread in your email? I could not tell from email; maybe you did as an embedded link. But in a potentially legal issue, you should also write out URL like this:
https://www.forexpeacearmy.com/community/threads/pepperstone-stealing-profits-of-traders.59328/
You can always resend the email if you forgot to put the url link.
And do not make any more trades on that account (or any pepperstone accts). Right click on account history tab in mt4 and select "show all history". Then generate a statement. Save this html statement as additional evidence. Take a long screenshot also if possible.
Edit: also activate call recording on your mobile phone so that all calls are auto-recorded. I'll explain why in PM.
---------------------
The real reason why this happens has to do with the unfortunate truth that most forex brokerages are actually bucketshops that masquerade as legit brokerage.
In simple terms, the bucketshop broker is a glorified casino and anticipated you and most other depositors would lose, similar to a casino. This means that they were internalizing your trade (trading against you). So withdrawing then became an issue because you (statistically) were
not supposed to be profitable. And they thought they would just end up keeping your deposit
But you do appear to have legitimately "won", and they don't want to "pay out". So they start playing games like this instead of honoring their fiduciary responsibility. In this case, you kept decent records, so I think you have a good case here (or with AFCA if it comes with that).
That kind of money should be in Prime of Prime or tier 3 broker who has a provable, STP relationship with PoP. PM me for more details on this.