You will need to give good debt collection compani...

You will need to give good debt collection companies good feedback, it can feel especially bitter when their collection fees are as high as their Intrum. But I'm happy with how they follow up those who owe money. They are flexible on installment plans and send reminders via SMS.
In my experience, there will not be a lot of additional fees in arrears either, as long as you stay in touch and inform you if you are unable to pay a month.
First positive experience I've had with a collection agency.