Success Tips for Applicants:

1. Pay attention to 'customer service' mentioned twice in the listing. Applicants must punctuate their CVs with past experiences where they have excelled in customer facing roles.

2. Highlight any experience related to the handling and/or marketing of cylinders or similar products.

3. The mentioning of '5 O levels including Maths & English' necessitates showcasing any academic achievements in these subjects especially on the CV.

4. In my experience, markings such as 'any other qualifications is an added advantage' hint at the opportunity to differentiate yourself. Include relevant extra-curricular achievements or certifications you might have.

5. The instruction 'Only ZERA TRAINED INDIVIDUALS MUST APPLY' is quite explicit. You should only apply if you have the Zera Training Certificate.

Things to Take Note of in the Listing:

1. The listing explicitly mentions how to apply - by sending a CV to an email. Hence, applicants should not try different methods like calling or visiting in person.

2. There's no information on the application deadline. This could signal that positions may be filled as applications come in.

3. 'Strictly text only' suggests that calls may not be appreciated. Stick to texting only as per instruction.

4. Individuals without the specific ZERA training are discouraged from applying.

5. The mention of O levels including Maths & English, implies the importance of these subjects to the organization.

How to Make a Standout Application:

1. What I have noticed over time is, tailoring your CV and cover letter to the specific needs of the job increases chances of success. In this case, emphasize experience in customer service, handling of cylinders and marketing of similar products.

2. Highlighting any specific industry insights or successful campaigns you may have been part of.

3. Being one of the ZERA trained individuals applying for the jobs in Zimbabwe, mentioning any notable achievements or commendations during your training can make your CV more appealing.

Things a Novice May Miss:

1. Novice job seekers often overlook the significance of any special instructions. Here, strict adherence to 'App/ No Calls to: 785232021 (strictly text only)' is paramount.

2. In my experience, most early career seekers apply broadly without noting job specifics, like the explicit need for a 'Zera Training Certificate' here.

3. The focus on 'excellent customer service' and 'marketing company products' can imply a sales orientation in the role. Hence, demonstrating an ability and enjoyment for sales should be emphasized in the application.

Remember, these employment opportunities in Zimbabwe are competitive. Making a strong impression with a custom-tailored application is key to landing the job vacancies in Zimbabwe, or anywhere else. Good luck in your job search in Zimbabwe!