Allpowers R2500

Im so disappointed- Allpowers trading as Henison-AU on Amazon (have exactly same address on invoice as Allpowers direct) replaced an R2500 less than 6 months after purchase last year becasue USBC outlets stopped functioning. I bought a B1000 expansion battery MArch 25 - on the basis it expands capacity of R2500 (as per Allpowers AU and USA websites) from Allpowers AU - emailed service@allpowers and support@allpwers and Henison-AU via Amazon Yesterday Henison-AU/Amazon/Allpowers told me B1000 does NOT work with R2500, and they have asked their Alpowers team to update websites/support - yet they still are selling a R2500-B1000 Combo, and offered be a $50 discount. I want a refund for the B1000 as it is virtuallu useless by itself. service@allpowers.com and support@allpowers.com have stopped responding to my emails. I just wish I had tested after I bought B1000, but becasue I saw multiple youtube reviews of R2500 and B1000 working together, and also owning multiple VTOMAN and VoltX power stations (cycling them to keep batteries in good health). I would have done an Amex chargeback - I may still do this if it is possible as well as contact ACCC. I actually sent all email asking why they produce an Expansion Battery which does NOT work with their power stations - what a joke! Naturally they havent responded Checkout ALLPOWERS AU website! Still on sale! https://allpowers.com.au/products/allpowers-r2500-b1000-expansion-battery