KLM Excess Baggage Charges ... You're looking at Zone 4 ... €100 .... Philpost is much cheaper and no problem with delivery.
We only paid £27 quid for the extra 23 kilos, purchased in advance, back in September for October. I checked the bill yesterday. Maybe it was a special deal or something, I dont know, but that was the price we paid for the extra 23 kilos.