I would suggest you to go for it. You have very good scores in other modules. I would highly doubt that you prepared well in all three modules except Writing module.I wrote the 1st Dec 2018 BC IELTS exam. I got
Listening 9
Reading 9
Writing 6.5
Speaking 7.5
I plan to submit my EOR on Monday 17th. Abit Skeptical now cos i read that if the difference in scores is greater than 2 there is usually an automatic re evaluation. Do you think i should give the re evaluation a try?