OK, I think you should have read their terms and conditions first. They have specified on the bullets 1 and 4 that they have the right to choose an alternative if you do not say the contrary
I do not think this is fair, but legally, they had it on writting... Give it a try, but to be honest I do not think you will be able todo much about that, bt just stop buying from them...
Terms and Conditions
1 Plants are offered subject to availability. Should a variety with flowers be sold out, we reserve the right to send an alternative. For gifts, please use the gifts page to order.
2 Prices subject to change without prior notice. Latest online pricing superceeds all previous prices.
Orders processed strictly on rotation. If you require an urgent delivery we can 'fast track' it for an additional fee of £4.
3 Damaged packages should be reported to ourselves and to the carriers within 3 days of receipt.
4 Substitutes – If you do not want to receive a substitute plant in the event of your choice not being available, please state so clearly on your order, otherwise a similar plant of equal or higher value will be substituted.
5 Payments by Credit card will incur a 2% transaction processing charge while Debit cards including Maestro/Solo incur a 35p charge.
Regal Orchids accepts no responsibility for plants bought in error.