Help me! Choose the correct from of the verbs.There were however a number of administrative problems. When we arrived/had arrived, we discovered/had discovered that the hotel manager reserved/had reserved the wrong room for us and therefore we didn't have/had not had enough space. Unfortunately, he couldn't let us have the larger room because he gave/had given it to another group, even bigger than ours.He also misunderstood/had also misunderstood the letter explaining what food we required/had required. In fact, we suspected/had suspected that he lost/had lost the letter. We don't recommend using this hotel again.

When we arrived, we discovered that the hotel manager had had reserved the wrong room for us and therefore we didn't have not enough space.