hey bud, im having the same issues, as it stands there is pretty much no mhrb in the uk, i ordered some a week an half a go and i got it this week just gone, i also found the remaining last uk "supplier" on ebay, just out of chance he bought 2 kg of powdered back in oct from MHUK an only just got in in jan/feb so he still had a few 50g bags of powder left. i had to order most of them he had left so hes out now. soz.
your gonna have to either place an order with MH-UK and wait till they get in in as they are backlogged due to customs seizing their powder stuff an holding the mhrb for months, he managed to get mine out pretty quick but i think its cos i phoned him a few times an kinda pleaded to him to send out the 150g i ordered asap, as i was a new customer i think he wanted to keep me happy (its very much appreciated that he sent it tho). i wouldnt recommend ordering from them now tho even opaquelens(he runs it) told me not to order anymore an he might not be getting it in the future and turning to acacia. depending how the whole court case an customs shit pans out. your best bet is to order form usa but even the usa suppliers are starting to say no to uk orders. there are a few on ebay, healingforest seems to have it a ship to uk an theres another online vendor from brazil
wotever you do dont order powdered bark as theres a chance it will get seized, im not sure if they are stopping smaller 1-2 kg packages i started a thread to see but nobody knows if its safe as i got now replies. but its pobably safe to assume that they will stop it if its noticed.
i dunno if you read the news article from customs an the sun in regards to dmt an the so called busts of 125kg of "dmt"( powdered mhrb) but its this shit that causing all the problems so until a court rules that wot customs have done is illegal an the suppliers are not breaking the law you can expect it to remain very hard to get mhrb in the uk.
place an order via ebay(healingforest) or adenium they seem to be the 2 best options for now. a couple week wait is gonna be less than a month or 2 your likely to wait for a uk supplier.
customs should have no chance in court as they stuff they seized is not controlled in any way, let alone illegal an its not exactly in a ready to use preparation although that is wot customs are arguing in court that cos its powdered its prepared or part prepared for consumption. theoretically they should win piss easy but knowing this country an its corrupt justice system they will probably get fucked over. it also seems they are doing all this to put the suppliers out of business an make thm mess up with their taxes which is illegal anyway.
hope this helps a little.
goodluck.
PROHIBITION?? - just say NO!!