Best thing is jumping from level 5 to 8 , 4 to 8 and similar things to mke use of the additional wish credits we get during REAL refine rebates. Jumping one level at a time is not the best way to go. Do bulk jumps.

juve ..seeing the number of refins you have..you can try 6 to 9 in first position..6 to 7 is 100 mediums max..7 to 8 is 200 advanced but you will have a 50 additional wish credits so 150 max...for 8 to 9 its 500 but you get base wish credits of 100..so max case 400..but I have felt that when i have more refines than i need for a particular upgrade I get it with less refines( not proven, maybe i believe because i put it in auto upgrade and i dont count the exact refines i use, but i am sure i have been always lucky with bulk jumps, give me a lot more value for the refines i put)...But by the time of next rebate you will have more refines and you can decide as per the refines you have...Best thing is go 5 or 6 to 9 in first position in each rebate and later focus on second position. And when you are doing these jumps if you are not able to reach maximum rebate of 500 refines in this bulk jump , say you have used 469 refines and you reached 6 to 9, the split up the remainiing 31 in other equipments, use very little on each so that they dont level up, because you dont want to level up unless you c*e that bonus wish credits you get for leveling up.