I've contacted Primark about the issue and I was told that it would only go to court (in aprox 6 months) if the RLP from Primark receive a police report from the incident (which they hadn't received, so it was probably archived).
Later I called the police office and the officer basically told me to "forget about the incident and move on".
So what I conclude is that if you have no criminal record, debts, etc, thus being your first time shoplifting AND if it's a small amount, the police in here will very likely archive the incident and no action will be taken.