so the diffuser has only been used maybe 10 to 15 times and the oils I have 2 of each of the following, noir, calm, Seychelles, sleep and wild mint so that's 10 in total. I have partially used 1 bottle of each fragrance but the other bottles are completely full and unused. I'm charging £30 for the diffuser which is less than half of what I paid for it and another £25 for the oils which at normal price are £10 each meaning if they were all full they would be worth £100. I think the price is more than fair so I will not negotiate on it.