cmlf replied
Hi!
I've already been able to fix the problem.
When using several options, it is necessary to indicate in ALL of them that the price is increased by 0 and only in the last one it is necessary to indicate the real increase.
If you only use one option, it always works fine.
Thanks for your help, although the problem was caused by the plugin and not by the "Soledad" theme.
You've been very kind.
Many thanks.
Greetings