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Apart from the ones you purchased, how old were the bushes? Older bushes with bigger root systems don't seem to do well initially, but usually make a full recovery given time.Did they get moved in winter when fully dormant? This helps a lot. I would not attempt to move them at other times of the year.Frankly, this is a bit inexplicable given that some are doing well, but most failed to survive the move.
Were they dug-up and replanted same day, or left waiting for a while, bare rooted and open to frost? I have moved gooseberries and currants, between plots, overwintered in bucket sized pots and not lost any. Perhaps you may find a neighbour with established plants, possibly benefitting from a sensible pruning....
It has been very, very dry and newly transplanted bushes need a lot of water to get settled in. The earlier ones might have had more rain to help perhaps.Ask for prunings and make a clean cut at a node, remove leaves at the bottom of the cutting, stick them in the ground, most should take if it is not too dry. Should take two years, three at most, from cutting to first fruit.