My employer insist that i must put the nature of my sicknes on my sicknote. Can I refuse

Unfair Labour Practices means any unfair act or omission that. arises between an employer and an employee, involving:
The un-fair conduct of the employer relating to the promotion, demotion or training of an employee or relating to the provision.

Examples include:

• Refusing to process a grievance because an employee is not a union member.
• Threatening an employee for filing a ULP charge.
• Refusing to negotiate in good faith with an agency.
• Calling, participating in, or supporting a strike, work stoppage, or slowdown.

http://www.labourprotect.co.za/Unfair_Labour_Practices.html

i wouldn't trust that only stick to doctors you are comfortable with

you can get that information by calling the fair work office or the allied meat workers union office
penalty rates are at the discretion of the employer and any employer who refuses to pay penalty rates will not keep good staff for long

Sounds like the account belongs to your employer and any information in the account are the property of the employer. As such, you no longer will have access to that account.

take a step further
take all receipts of transaction details to your bank and open up a dispute with paypal

You are free to resign if contract is due. Is there is a contract there are sometimes rules about resigning. Check on that.

I am pretty sure they do not want you to leave because you are an excellent employer. Take this to your advantage and get a good wage raise!!!

Ask for a raise and better working conditions, or a promotion.

God Bless You!!

I believe that it is human nature to wnat to improve one's condition in life. It is also human nature to lose interest after a time... and our curiosity is akin to a feline's in this respect.
- improve one's financial condition - better exploit one's aptitudes, experience and training to obtain a better paying and more comfortable fit to one's career expectations.
Hope this lights the way for you.